Borman effect in resonant diffraction of X-rays

Journal Article · Thu Aug 15 00:00:00 EDT 2013 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776113100063· OSTI ID:22210518

Oreshko, A. P., E-mail: [e-mail] ^[1]

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1. Moscow State University (Russian Federation)

A dynamic theory of resonant diffraction (occurring when the energy of incident radiation is close to the energy of the absorption edge of an element in the composition of a given substance) of synchronous X-rays is developed in the two-wave approximation in the coplanar Laue geometry for large grazing angles in perfect crystals. A sharp decrease in the absorption coefficient in the substance with simultaneously satisfied diffraction conditions (Borman effect) is demonstrated, and the theoretical and first experimental results are compared. The calculations reveal the possibility of applying this approach in analyzing the quadrupole-quadrupole contribution to the absorption coefficient.

• OSTI ID: 22210518
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 117, Issue 2; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
APPROXIMATIONS
COMPARATIVE EVALUATIONS
CRYSTALS
DIFFRACTION
GEOMETRY
X RADIATION